# Do subnets have to be the same size?

## Do subnets have to be the same size?

It depends on block size you choose, overlap doesn’t work. Subnet’s network ID should be a multiple of a block size, starting from anywhere in the middle won’t work. /30 = 255.255. 255.252, Block size: 4, Subnets: 0,4,8,12,16,20,24….

### What are the 3 main classes of subnets?

Classes A, B, and C are used the most often by different networks. Subnet classes are made unique by the number of bits their IP addresses have dedicated to a network and the number of bits dedicated to hosts. They each have a default subnet mask.

How do you subnet into 4 subnets?

Divide the IP network 150.200. 0.0 with the network mask of 255.255. 0.0(/16) into 4 subnets.

Is subnet mask same for all subnets?

If the subnet mask is 255.255. 255.0, then the first three octets of all devices must be the same. If the subnet mask is 255.255. 0.0, then the first two octets of all devices must be the same.

## What does it mean to be on the same subnet?

It means when two IP addresses have a subnet mask such that the addresses share the same network address and broadcast address. For example: 192.168. 0.1/24 and 192.168. 0.254/24 are in the same subnet because of the /24 subnet mask.

### What is the subnet mask of 22?

255.255.252.0

/ 24 256 255.255.255.0
/ 23 512 255.255.254.0
/ 22 1024 255.255.252.0
/ 21 2048 255.255.248.0

How many subnets are in Class A?

The two bits added to the network part from the host part can have four possible values in second octet of a Class A network , 00, 01, 10, and 11. That means, we can get four networks if we do a 2-bit subnetting on a Class A network. Ths subnet mask to use for Class A network 2-bit subnetting is 255.192. 0.0.

What is subnet simple words?

A subnet, or subnetwork, is a segmented piece of a larger network. More specifically, subnets are a logical partition of an IP network into multiple, smaller network segments. The Internet Protocol (IP) is the method for sending data from one computer to another over the internet.

## What creates subnets from a larger network?

When a large network is subnetted, the network is divided into at least two smaller subnetworks, with each subnetwork (subnet) having its own subnetwork address (subnetid). When supernetting is performed, several small Class C networks are combined to create one large network, or supernetwork.

### What is subnetting for beginners?

Subnetting for Dummies 1 IP subnetting is a method for dividing a single, 2 You may feel compelled to subnet for many reasons. 3 A subnet mask defines which chunk of an IP address is 4 Default subnet mask table. Each class of IP address has its own default subnet mask. See More….

What is the difference between subnetting and subnet mask?

Subnetting can only be done in host portion. Subnet mask is used to distinguish the network portion from host portion in an IP address. An IP address and a subnet mask both collectively provide a numeric identity to an interface. Both addresses are always used together.

What is the number of hosts per subnet?

Net bits = 16bits. Host bits = 4bits. Subnet bits = 12bits. The total hosts per subnet. Lets us the magic number. 256 – 240 = 16. Minus 2 (1 for network number and 1 for broadcast) = 14. What is the valid host range of 172.16.93.193/20 a part of?

## How to create 4 subnets in a Class C network?

To create 4 subnets we need to 2 (2 2 = 4) Subnetting eligible host bits. Since in class C network space Subnetting eligible bits starts from 25 and Subnetting always goes from left to right without skipping any bit, the bits used in this network are 25 and 26.